1197999 has 12 divisors (see below), whose sum is σ = 1887912. Its totient is φ = 726000.

The previous prime is 1197997. The next prime is 1198013. The reversal of 1197999 is 9997911.

It is not a de Polignac number, because 1197999 - 2¹ = 1197997 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5952 + ... + 6149.

It is an arithmetic number, because the mean of its divisors is an integer number (157326).

2^1197999 is an apocalyptic number.

1197999 is a deficient number, since it is larger than the sum of its proper divisors (689913).

1197999 is a wasteful number, since it uses less digits than its factorization.

1197999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118 (or 12115 counting only the distinct ones).

The product of its digits is 45927, while the sum is 45.

The square root of 1197999 is about 1094.5314065846. The cubic root of 1197999 is about 106.2067579514.

It can be divided in two parts, 11979 and 99, that multiplied together give a 4-th power (1185921 = 33⁴).

The spelling of 1197999 in words is "one million, one hundred ninety-seven thousand, nine hundred ninety-nine".